Wind-powered recharging for a weight-shifting coaxial helicopter
US10502188B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2016 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Dec 24, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/728
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A helicopter includes a propulsion system, gimbal assembly, and a controller. The propulsion system includes a first and second rotor assembly, wherein the first rotor assembly comprises a first motor coupled to a first rotor, the first rotor comprising a plurality of first fixed-pitch blades and the second rotor assembly comprises a second motor coupled to a second rotor, the second rotor comprising a plurality of second fixed-pitch blades. The second rotor is coaxial to the first rotor and is configured to be counter-rotating to the first rotor. The controller is communicably coupled to the gimbal assembly and is configured to provide instructions to at least one of the first or second gimbal motors in order to orient the plurality of first and second fixed-pitch blades into a position that permits wind to rotate the first and second fixed-pitch blades and thereby charge the power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.